Zcash Surges 30% on Grayscale ETF Filing and Mining Capacity Boost

ZEC ripped 30% to $788 on Grayscale ETF filing and Winklevoss-backed mining capacity. Volume up 263%, market cap $13.3B. Ironwood upgrade removes security overhang. This institutional catalyst play fits the altcoin rotation theme, with privacy coins gaining renewed attention. Question remains whether this is a sustainable breakout or a pump-and-dump.